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Finding the Fourth Proportional to 78,085.92, 117,051.08 and 44,765.76

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Solution

The fourth proportional to 78,085.92, 117,051.08 and 44,765.76 is: 67,104.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,085.92 : 117,051.08 = 44,765.76 : x
  2. Step 2: Convert to fraction form
    78,085.92/117,051.08 = 44,765.76/x
  3. Step 3: Cross multiply
    78,085.92x = 117,051.08 × 44,765.76
  4. Step 4: Simplify right side
    78,085.92x = 5,239,880,555.02
  5. Step 5: Solve for x
    x = 5,239,880,555.02/78,085.92
  6. Step 6: Final answer
    x = 67,104.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.